Analysis
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max time kernel
0s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
09/01/2024, 06:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe
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Size
44KB
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MD5
ac0ecb4c3dfb500a0a707f6265c32395
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SHA1
be6c26263852f1a59b3a44bc29ca271dd1943295
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SHA256
29e21f3bf3088e240ff0639ae2a52b5adcddea67d39baf4376b0b298e2464c3d
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SHA512
f745d27dffbf8d0510ce48ea906ac6f86728e7c9006545e732e98490126d031698fa5b6a7071281ec175df406e996b728f39d11066c6bfc77f49358162b02584
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55X:X6QFElP6n+gJQMOtEvwDpjB0GIWX
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation 2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2024 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4724 wrote to memory of 2024 4724 2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe 88 PID 4724 wrote to memory of 2024 4724 2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe 88 PID 4724 wrote to memory of 2024 4724 2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-08_ac0ecb4c3dfb500a0a707f6265c32395_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4724 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2024
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
19KB
MD58ee1dca59ec205da809b03cad56fa929
SHA122938f03d2b9ed3ebc72fc15c08b51ea6b12bb9a
SHA256bf92890b533ee62a2c4527b04454d3e02967a303c814ba1e91630582e62e2b2f
SHA512df16d3fcd118deeca8c24bc94b8ef5c89f8313a45b84841f810143b4a58a6208ff5b2fb1abd8f40908e18f712c2c5b79b2fd7bb5d9a33c992cf159c4ba87ed32
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Filesize
45KB
MD51e1b12db7b73e6ca7903b9e29fc6dd67
SHA174d6aa53e0b4ab8e521dcc55004050d3354e7544
SHA256ef59386d2ca9425fc66dd3e5d3a548a2a8023aef92abbf665163becb0f94b6a3
SHA512e8f9a6ba1a378a9154d1667f472a3b56be1de9f118096b0b9290d34d4675988e47f305fbd10cf953830dadd679aaf596836c363c53945a6020a383b3de8fd4b0